DE3279919D1 - A system for scanning an illuminated area - Google Patents

A system for scanning an illuminated area

Info

Publication number
DE3279919D1
DE3279919D1 DE8282105013T DE3279919T DE3279919D1 DE 3279919 D1 DE3279919 D1 DE 3279919D1 DE 8282105013 T DE8282105013 T DE 8282105013T DE 3279919 T DE3279919 T DE 3279919T DE 3279919 D1 DE3279919 D1 DE 3279919D1
Authority
DE
Germany
Prior art keywords
scanning
illuminated area
illuminated
area
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE8282105013T
Other languages
English (en)
Inventor
Kenneth Allen Bushaw
Ronald Dean Gillingham
Gary William Jorgenson
Michael Anthony Steffes
Clyde Louis Manning
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of DE3279919D1 publication Critical patent/DE3279919D1/de
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/40056—Circuits for driving or energising particular reading heads or original illumination means
DE8282105013T 1981-07-31 1982-06-08 A system for scanning an illuminated area Expired DE3279919D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/288,721 US4408231A (en) 1981-07-31 1981-07-31 Method and apparatus for calibrating a linear array scanning system

Publications (1)

Publication Number Publication Date
DE3279919D1 true DE3279919D1 (en) 1989-10-05

Family

ID=23108347

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8282105013T Expired DE3279919D1 (en) 1981-07-31 1982-06-08 A system for scanning an illuminated area

Country Status (4)

Country Link
US (1) US4408231A (de)
EP (1) EP0071005B1 (de)
JP (1) JPS5827462A (de)
DE (1) DE3279919D1 (de)

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US4980778A (en) * 1989-05-11 1990-12-25 At&T Bell Laboratories Method for correcting nonuniformities in pixel output level for a line scanner
US5196948A (en) * 1989-07-07 1993-03-23 Konica Corporation Image density reading apparatus capable of selecting a desired amplification level for the density
US5101281A (en) * 1989-08-05 1992-03-31 Ricoh Company, Ltd. Automatic gain control circuit of image reading apparatus
US5278674A (en) * 1990-01-25 1994-01-11 Hewlett-Packard Company Method and apparatus for providing illumination compensation in a document scanner
US5068912A (en) * 1990-06-04 1991-11-26 Unisys Corp. Track gauges for aligning and focussing the imaging system in a high speed document handling system
US5327138A (en) * 1990-07-31 1994-07-05 Q-Dot, Inc. Charge-mode analog to digital converter
US5189423A (en) * 1990-07-31 1993-02-23 Linnenbrink Thomas E Charge-mold analog to digital converter
JPH06501364A (ja) * 1990-10-15 1994-02-10 ガーバー・システム・コーポレーション 広領域ディジタル・スキャナ
US5194966A (en) * 1990-11-20 1993-03-16 Educational Testing Service Optical scanner threshold setting method and sheet
JP3150191B2 (ja) * 1992-04-20 2001-03-26 キヤノン株式会社 画像読み取り装置
DE4331965A1 (de) * 1993-09-21 1995-03-23 Mdc Med Diagnostic Computing Verfahren und Vorrichtung zur Erhöhung der Graustufenauflösung
US5479207A (en) * 1994-02-14 1995-12-26 Hewlett-Packard Company System and method for improving the signal to noise ratio of a CCD sensor in an optical scanner
JP3618806B2 (ja) * 1994-11-15 2005-02-09 キヤノン株式会社 撮像装置
US5767980A (en) * 1995-06-20 1998-06-16 Goss Graphic Systems, Inc. Video based color sensing device for a printing press control system
US5636040A (en) * 1995-08-01 1997-06-03 Acer Peripherals, Inc. Automatic intensity control of the lamp within image scanning apparatus
US5663562A (en) * 1995-09-06 1997-09-02 Hughes Electronics Thermal imaging device
US5682035A (en) * 1995-09-06 1997-10-28 Hughes Electronics Thermal imaging device
US5682033A (en) * 1995-12-08 1997-10-28 Dba Systems, Inc. Digitizing CCD array system
JP3423572B2 (ja) 1996-06-06 2003-07-07 キヤノン株式会社 画像読み取りシステム、その制御装置、画像読み取り方法、及び記憶媒体
US5898509A (en) * 1996-10-15 1999-04-27 Hewlett-Packard Company Method for improving the signal-to-noise ratio of a CCD sensor in a color imaging device
US6330345B1 (en) * 1997-11-17 2001-12-11 Veridicom, Inc. Automatic adjustment processing for sensor devices
US6493597B1 (en) * 1998-01-30 2002-12-10 Inspectron Print monitoring system and method using slave signal processor/master processor arrangement
US6473205B1 (en) 1998-06-03 2002-10-29 Agfa Corporation Image sensor module adjustable in six degrees of freedom for use with an image acquisition device
US6304826B1 (en) * 1999-02-05 2001-10-16 Syscan, Inc. Self-calibration method and circuit architecture of image sensor
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US20040145787A1 (en) * 2000-09-01 2004-07-29 Ta-Wei Lin Method for calibrating color image scanners
TW491441U (en) * 2001-01-10 2002-06-11 Avision Inc Structure of adjustable scan line brightness of the scanner
US7308375B2 (en) * 2001-05-14 2007-12-11 Jensen Nanette C System and method for determining light source current
US6571189B2 (en) * 2001-05-14 2003-05-27 Hewlett-Packard Company System and method for scanner calibration
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US7251065B2 (en) * 2002-01-31 2007-07-31 Eastman Kodak Company Image color balance for scanners using an illumination spectral sensor
US6914701B2 (en) 2002-12-06 2005-07-05 Howtek Devices Corporation Digitizer with improved dynamic range and photometric resolution
US7324690B2 (en) * 2003-09-04 2008-01-29 Micron Technology, Inc. Metal mask for light intensity determination and ADC calibration
US7186982B1 (en) * 2005-09-01 2007-03-06 Lexmark International, Inc. Method for calibrating a dual channel scanner background
JP4372743B2 (ja) 2005-10-31 2009-11-25 本田技研工業株式会社 車両の開閉部構造
JP5029924B2 (ja) * 2009-05-28 2012-09-19 ブラザー工業株式会社 画像読取装置、及び画像形成装置

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US4133008A (en) * 1977-03-14 1979-01-02 Rapicom Inc. Automatic illumination compensation circuit
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Also Published As

Publication number Publication date
EP0071005B1 (de) 1989-08-30
EP0071005A3 (en) 1986-03-19
JPS6117187B2 (de) 1986-05-06
US4408231A (en) 1983-10-04
EP0071005A2 (de) 1983-02-09
JPS5827462A (ja) 1983-02-18

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee